OpenAI Files Confidential S-1 With SEC as Anthropic and SpaceX Also Head to Public Markets

OpenAI has filed preliminary IPO paperwork with the US Securities and Exchange Commission, joining Anthropic and Elon Musk's SpaceX in a wave of artificial intelligence companies preparing to go public. The company announced the confidential S-1 filing on Monday. Anthropic submitted its own confidential filing on June 1, and SpaceX recently launched an IPO roadshow and is expected to begin trading within days.